MCQ
Identify the incorrect statement.
- ✓The oxidation states of chromium in $CrO _{4}\,^{2-}$ and $Cr _{2} O _{7}\,^{2-}$ are not the same
- B$Cr ^{2+}\left( d ^{4}\right)$ is a stronger reducing agent than $Fe ^{2+}\left( d ^{6}\right)$ in water.
- CThe transition metals and their compounds are known for their catalytic activity due to their ability to adopt multiple oxidation states and to form complexes.
- DInterstitial compounds are those that are formed when small atoms like $H , C$ or $N$ are trapped inside the crystal lattices of metals.
